I went to the doctor because of a toracic pain after intense physic exercise. I played basketball for a long time and I never had any problem of that nature, but I quit two years ago because it was impossible to conciliate with college. There is no familiar or personal background of coronary syndrome or any relevant disease. The doctor performed the physic examination and diagnosed me with pectus excavatum (mo one ever told me and I didn t even noticed it) , all cardiac and pulmonary sounds were normal as the rest of the exam. I also did a ecg which came back perfectly normal (only a small tricuspid insufficiency considered normal). I have laboratorial analysis and a cardiac function test with intense exercise (don t know the correct term) scheduled. So, up to my question, what s the pathophysiology behind the thoracic pain caused by pectus excavatum, why was that never a problem and what are the consequences for my future?